CITY REPORT CA

Lower Lake, CA Home Safety: Home Safety Score unavailable

1 ZIP code · 2 water systems · Updated

Data: EPA SDWIS

1
ZIP Codes
2
Water Systems
0
ZIPs Linked to Systems with Violations
Zone 3
County Radon Potential (Low)
$414K
Median Home Value

What You Should Know About Lower Lake Water

  • Homes built before 1986: 51% - older plumbing may contain lead solder.
  • Health risk index (ZipCheckup composite of CDC data): 14.48.

Who Supplies Your Water in Lower Lake

Counting every public water system linked to Lower Lake, CA in federal data gives 2. The list below keeps the 2 largest by reported population served, a figure that covers each system's whole service area rather than the city alone. A household's own supplier is named on its water bill.

Overview

We track home safety data for 1 ZIP code in Lower Lake, California (population ~3,036), covering 2 community water systems serving approximately 10,595 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.

The available EPA record reports 0 violations for 1 ZIP code with a reported violation count.

Water Sources

Lower Lake water systems draw from: Groundwater, Surface water.

Lead & Copper

  • Average of reported 90th-percentile lead results: reported as 0 mg/L (a reported 0 is not proof of no lead; check the source record for its reporting limit) (EPA action level: 0.015 mg/L)
  • 0 of 1 ZIP code with known status exceed the EPA lead action level

Radon Risk

1 of 1 ZIP records with known zones is in EPA Radon Zone 3.

The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.

Areas with No Violations

ZIP Code Safety Score System Population
95457 — Mt. Konocti Mutual Water Company 4,360

All ZIP Codes in Lower Lake

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

Health Outcomes in Lower Lake

10.8%
Asthma (US: 9.8%)
14.1%
Diabetes (US: 10.4%)
18.1%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). County health indicators are shown for context only and are not linked to this area's water records.

Compared to National Average

Asthma 10.8% ↑
Diabetes 14.1% ↑
Mental Health 18.1% ↑

Vertical line = national average. ■ Above national · ■ Below national

Housing & Infrastructure in Lower Lake

1984
Median Build Year
51%
Built Before 1986
19%
Built Before 1970
Copper
Likely Pipe Material

With 51% of homes built before 1986, lead solder in plumbing is a potential concern. Federal law banned lead solder in drinking-water plumbing in 1986, but many older homes retain original plumbing.

Source: U.S. Census Bureau American Community Survey (ACS).

Housing Age Profile

Median construction year in Lower Lake: 1984, set against the 1986 federal lead limits for new plumbing.

1984
Median Year Built
51%
Pre-1986 (lead solder era; lead paint banned 1978)
19%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (19%) 1970–1986 (32%) Post-1986 (49%)

Over half of homes in Lower Lake were built before 1986, when federal law began restricting lead solder in drinking-water plumbing. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.

Source: U.S. Census Bureau ACS B25034.

Lead Exposure Risk for Children in Lower Lake

51%
Homes Built Before 1986

Why children are most at risk: The CDC states that no safe blood lead level in children has been identified. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

If you have young children or are pregnant, consider testing your home's water - especially if your home was built before 1986.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

Historical NFIP Claim Context in Lower Lake

39
Total FEMA Flood Claims
$10,514
Avg Reported Sum With Payment Data
0%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Lower Lake contains 39 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $10,514. Among ZIP codes with claim records, 0% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.

How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure.

Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.

Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.

Frequently Asked Questions

How many water systems serve Lower Lake?
Our records map 2 water systems to 1 ZIP code in Lower Lake. The related population figure in our data is approximately 3,036 people; it is not a count of people served citywide.
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How to cite this page

APA ZipCheckup. (2026). Lower Lake, CA Home Safety: Home Safety Score unavailable. https://zipcheckup.com/cities/ca/lower-lake/
BibTeX
@misc{zipcheckup-cities-ca-lower-lake,
  author = {{ZipCheckup}},
  title  = {{Lower Lake, CA Home Safety: Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/ca/lower-lake/}
}

Page version: October 2026.

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